Oregon Revised Statutes Elections § 258.280

(a) Two or more candidates for that nomination or office have an equal and the highest number of votes; or

(b) The difference in the number of votes cast for a candidate apparently nominated or elected to the office and the votes cast for the closest apparently defeated opponent is not more than one-fifth of one percent of the total votes for both candidates.

(2)(a) Unless otherwise provided by a home rule charter, at an election described in ORS 249.088, the Secretary of State shall order a full recount of the votes cast for nomination or election to a nonpartisan office for which the Secretary of State is the filing officer, and the county clerk who conducted the election shall order a full recount of the votes cast for nomination or election to any other nonpartisan office, if the canvass of votes of the election reveals that the number of votes cast for a candidate differs from a majority of votes cast for the office by not more than one-fifth of one percent of the total votes cast for the office.

(b) This subsection does not apply to the office of sheriff, the office of county clerk, the office of county treasurer or a candidate to fill a vacancy, as described in ORS 249.091.